In Situ Visualization of WRF Data Using Universal Data Junction

Aniello Esposito, Glendon Holst

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


An in situ co-processing visualization pipeline based on the Universal Data Junction (UDJ) library and Inshimtu is presented and used for processing data from Weather Research and Forecasting (WRF) simulations. For the common case of analyzing just a number of fields during simulation, UDJ transfers and redistributes the data in approximately 6 % of the time needed by WRF for a MPI-IO output of all variables upon which a previous method with Inshimtu is based. The relative cost of transport and redistribution compared to IO remains approximately constant up to the highest considered node count without obvious impediments to scale further.
Original languageEnglish (US)
Title of host publicationLecture Notes in Computer Science
PublisherSpringer International Publishing
Number of pages9
ISBN (Print)9783030905385
StatePublished - Nov 13 2021


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